Cheapest one-way flights from London to Keflavik in August from $131

Best time to book flights for London (LHR) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest one-way flights from London (LHR) to Keflavik (KEF) in August 2025 (see full year).

One-Way flights

31 Aug British Airways direct
18 Aug Scandinavian Airlines
07 Aug Scandinavian Airlines
23 Aug British Airways
15 Aug British Airways
27 Aug British Airways
30 Aug Vueling Airlines
17 Aug Scandinavian Airlines
20 Aug Scandinavian Airlines
05 Aug Icelandair direct

Also check the deals for return flights from London to Keflavik in August.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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